Loose-leaf binder.



No. 868,491. PATENTED 00T. 15, 1907. H. SGHNELLBR & P. J. HENKE.

LOOSE LEAP BINDER. APPLIoATIoN HLED MAR. '7. 190e.

F1111 f f WVVNESSES- INVENTORS- da i 'P 4l. @M Y A//mw 1 Unirse stares entranti HENRv SCHNELLE i, OF 'PFARL RIVER, NEW YORK, AND FREDERICK J. I-IENKE, OF WEST HOBOKEN, NEW JERSEY, SAID SCI-INELLER ASSIGNOR TO SAID HENKE.

LOOSE-LEAF BINDER.

No. se8,491.

Specification of Letters Patent.

Application tiled March 7,1906. Serial No. 304,805.

River, county oi Rockland, and State of New York, l

and FREDERICK .I. IIENKE, of 585 Central Avenue, West IIoboken, New Jersey, citizens o the United States, have invented a new and useful Loose-Lettil Binder, o which the following is a specilication.

Our invention embodies an entirely new device or binding paper and books, making it possible to remove the contents in part, or entirely, after having been used, and thereafter inserting new leaves or'material, at the same time giving the book a round back and concave lace, and preventing the contents from coming into contact with the mechanism, and without puncturing them. We obtain these results by the mechanism illustrated in the accompanying drawing.

Figure l is a lull iront view of the parts which compose the binder proper, the key being removed, with the eccentric wheel opened to its fullest extent, in a binder embodying our invention. Fig. 2 is a transverse section about the center of Fig. l. Fig. 3 is a sectional view on a plane parallel with the clamps with key inserted. Fig. 4 is a lull view of end guard plate removed from the binder.

The wood back oi binder b, and guard plates l, constitute the lrame of the binder. The contents are held in place by the jaws of clamps a, which are opened and closed by the eccentric motion caused by the eccentric wheel c, the latter being connected with clamps a, by pins e.

The movement of the eccentric wheel c is regulated by key l; which has the form of a teat wrench, and when opening and closing the binder, is inserted through the back of binder into slot (1. When the clamps n are closed on the contents, and key le removed [rom the slot rl, it is impossible for the contents to become loosened. The resisting power of the eccentric wheel c becomes permanent, as the wheel is a lock in itsell' when the pins are in the center. When the pins e l are not in the center, the wheel c is held in check by pawl f, the latter being connected with bar o, wheel parts f, and o, are connected by pin 1LT The pawl f, isl'astened to the back oi binder b by screw m The resisting power ol pawl f on ratchet o is withdrawn by pressing bar r/ inward, at the same time turning key t to the left, which action allows the jaws of clamps o to open the space required. This is regulated by withdrawing the pressure of the hand from bar g1, and which action causes pawl f to spring back to ratchet o. We obtain this pressure of pawl f on ratchet o, when pressing bar f1 inward, through the agency oi spring h, fastened to bar Q by pin p and connected with staple q which is driven into wood back oflbinder b.

Patented Oct. 15, 1907.

Pins n and p serve to hold bar g in place.

The bars j which are riveted to the clamps at the larger ends, and which move with the clamps when opening and closing the binder, have the object oi giving the iront of contents a concave face.

The position of the paper or contents when resting en these bars, gives the jaws of clamps a, a direct pressure towards the center of the binder.`

If these bars were omitted from the binder, which the accompanying drawing represents, the paper in the middle could be pressed out when binder was opened in the middle. The bars j therefore do away with the necessity oi having prongs,

and periorated paper to suit the prongs.

It will be seen that the small ends of bars j draw towards the center as the binder is opened.

The screws i are fastened in wood back of binder, and hold clamps a in position at both ends of binder.

The clamps are connected with screws i, by means of a slot in clamps (1. The action of the clamps a, by means of these 'slots connected with the screws i, enables the clamps to respond to the action of the eccentric wheel c, when the binder is being opened or closed, and also enables the clamps to keep in perfect position, regardless of,

the speed which may be used in opening or closing the binder.

The entire mechanism used for operating the Inovement of clamps a binder b.

, is placed in the Wood back of The ratchet o is prevented from coming into contact with the wood back, by a steel strip r encircling the eccentric wheel, allowing the small space required, for pawl f to connect with ratchet o The invention illustrated in the accompanying the center of wood back, and connected with the clamps' by a pivot through and from each clamp, a key made separate from the eccentric wheel, and a bar riveted to the end jaw or' each clamp, tapering towards the center in concave t'orm to shape the contents and bring pressure of clamping jaws directly to the center' of same when closing, substantially as herein described.

2. The combination with a wood back or base, of the clamps slotted near their ends, moving on wood back and each having three jaws, and a double eccentric wheel located in a groove in the center ot' wood back, and connected with the clamps by a pivot through each clamp, and a bar riveted to the end jaw of each clamp to shape the contents in concave form, bringing,- pressure of clamps to the center oli' same, and a regulatingbar fg located in wood back, parallel with the clamps, a pawl f made separate from the regulatingbar and connected with the same by a pin "n",

screw my to hold the eccentric Wheel in check, after it draws the clamps together operated by the key, substantially as herein described.

3, The combination with a wood back or case b having guard plates l at each end, of the clamps With jaws a having bars j riveted thereto, and a double eccentric Wheel c with ratchet teeth traversing part of its outer edge, located in the center` of wood back, and connected with clamps by a pivot through and from each clamp, a steel strip 1^ protecting side of groove in Wood back from the ratchet on Wheel, the screws i connected with the back and passing through slots at ends of each clamp, a regulating bar g located in wood hack, a pawl f made separate from the regulating bar and connected therto by a pin 11" and fastened to the Wood back by 15 screw m a staple holding the regulating bar in place, a resisting spring attached to the regulating bar by a pin 12 and a key made separate to connect with the eccentric wheel When opening and closing the clamps, substantially as herein described.

HENRY SCHNELLER. FREDERICK J. HENKE.

Witnesses SAMUEL COOPER, AUGUST THIEL. 

